We don't need a computer at home
Historically, computers were invented to solve issues in the factory or the office (university office or company office) but recently invaded home and are becoming ubiquitous. At the beginning of this invasion, computers for home were (and are still) very similar to the ones for the industry/office: a CPU, a keyboard to enter data or commands and a screen to see what was happening. Artifacts to be attached to the computer were first invented for the corporate world and then progressively entered into homes. I still remember the first mouse we had at home: it was like a mini-revolution. After years there were still some software that could not take advantage of it or its usage was implemented but in a rudimentary way. Idem for the first webcam we acquired: only the provided software was able to use it. Now it comes embedded in most computer screen and can be used for various purposes (video chat, take pictures, read bar codes, art, …). ...